3 Common Issues Fixed by Tankless Water Heater Repair Springfield Technicians3 Common Issues Fixed by Tankless Water Heater Repair Springfield Technicians
Tankless water heaters are known for their energy efficiency, compact design, and ability to deliver hot water on demand. However, these systems still require maintenance and, at times, repair. If your unit stops working or produces inconsistent temperatures, it’s best to contact a licensed tankless water heater repair Springfield specialist. Below are three of the most common problems these technicians encounter and how they’re resolved.
1. Mineral Buildup and Scale Accumulation
Springfield’s hard water is a leading contributor to scale buildup in tankless water heaters. As water flows through the system, minerals like calcium and magnesium begin to collect around critical components—especially the heat exchanger. Over time, this buildup narrows water flow paths, causing pressure loss, fluctuating temperatures, and reduced system efficiency.
Professional technicians use specialized descaling solutions to flush out mineral deposits and restore optimal flow. This process, recommended at least once a year, helps prevent overheating and corrosion. Without proper flushing, the unit may overheat and display frequent error codes, leading to unnecessary system shut-offs.
Some signs of scale buildup include noisy operation, slower hot water delivery, or inconsistent temperatures at your faucets. A trained tankless water heater repair Springfield technician can test the hardness levels, inspect the unit’s condition, and recommend a descaling schedule based on your home’s specific water quality.
2. Ignition or Flame Failure
Tankless water heaters ignite burners only when hot water is demanded. If the ignition process fails, you’ll be left with cold water. Flame failure is another related issue where the unit starts but doesn’t maintain combustion.
Common causes include:
- Dirty flame sensors
- Clogged intake or exhaust vents
- Low gas supply or improper pressure
- Faulty ignition pack or corroded wires
Technicians troubleshoot these problems by inspecting gas lines, checking ignition components, and testing flame sensors. In some cases, the issue lies within the unit’s circuit board or control module, which requires specialized tools and manufacturer-specific knowledge to replace.
Units experiencing ignition problems often lock themselves out for safety. When this happens, error codes like “10” or “12” may appear on the unit’s digital display. Local tankless water heater repair Springfield services are familiar with these alerts and can resolve them quickly—restoring hot water service and system safety.
3. Error Codes and Electronic Malfunctions
Today’s tankless systems rely on sensors, circuit boards, and digital displays to ensure safe, efficient operation. When something goes wrong, the system generates an error code. These codes could be related to:
- Flow rate or water pressure issues
- Thermistor or temperature sensor failures
- Exhaust blockage or air intake restriction
- Faulty wiring or power surges
Troubleshooting these issues requires not only interpreting the error code but also inspecting the system internally. Repair technicians begin by checking the unit’s voltage, testing thermistors for resistance, and ensuring no physical obstructions are affecting airflow. They may also reset or update the unit’s firmware if applicable.